('CID100004973', 2),MESOHEME
('CID100004973', 2),MESOHEME
('CID100072422', 1),MESOHEME
ldiff: defaultdict(<type 'list'>, {'CID100072422': [0], 'CID100004973': [0, 0]})
f1: [0, 0]
f2: [0]
c1: Counter({0: 2})
c2: Counter({0: 1})
The chosen was ... CID100004973